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Relationship between circle are and radius squa0red is
A(Area) = pi r^2(radius squared).
pi is the constant of proportionality for ALL circles . It has a value of 3.141592.....
However for elementary school work , pi = 3.14
NB Remember to other relationship with circles for circumference.
C = 2 pi r = pi d
Learn and commit to memory ;-
A = pi r^2 & C = 2 pi r
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What is the relationship between the diameter and the radius of a circle?
The radius is half the diameter of a circle.
What is the relationship between the length of the diameter of a circle and length of the radius of that circle?
The diameter of any circle is twice its radius
What is the relationship between the length of a radius of a circle and the length of a diameter of the same circle?
The radius is half the diameter.
What is the area of circle with a radius of 35?
Area of a circle = pi*radius squared
What is the relationship between the diameter and the radius of a cone?
As a cone will always have a base which is a circle, the relationship between the diameter and radius remains constant with that of a circle at any point of the shape. The radius is always 1/2 of the diameter. To figure out the volume of a cone you must first work out the radius, for the formula is: (1/3) x Pi x R^2 x h ^2 = Squared
What is the relationship between pi and circles?
'pi' is the constant of proportionality for ALL circles of whatever size. 'pi' has the values of 3.141592.... (to infinity). For school work pi = 3.14 For circle area A = pi r^2 circle circumference C = 2pi r = pi d Volume of a sphere V = (4/3) pi r^3 Surface Area of a sphere SA = 4 pi r^2 The ancients before Classical Greece noticed that when an mule/donkey was tied to a centre pole (the radius) and was driven around the pole in a circle to drive up water (circumference) there was a constant ; pi = 3.14.... e.g. diameter 'd' = 2r = 10 and circumference = 31.4 Then C constant of proportionality d Inserting the numbers 31.4 = constant X 10 constant = 31.4 / 10 = 3.14 This constant was named 'pi' ; the Classical Greek small case letter 'p', for proportionality. This constant held good for any circle of any size. Hence we have C = pi d => C = 3.14 d further calculations gave us the Area as A = pi r^2 => A = 3.14 r^2 'pi' is an Irrational number. Casually this means the decimals go to infinity and there is no regular order in the digits. Your calculator may show pi = 3.141592654, but this is only an approximation. # pi = 3.141592654... Supa /dupa computers have calculated 'pi' to several billions of places and still going.
What is the relationship between the radius and the diameter of a circle?
The relationship between the radius and the diameter of a circle is that: radius = diameter /2
What is the relationship between the diameter and the radius of a circle?
The radius is half the diameter of a circle.
How you get the area of a circle?
A= Area of the circle¶= Pi (About 3.14)r= Radius squared (Radius times radius)3.14 * Radius squared
What is the relationship between raidus and area?
The relationship between the radius and area of a circle is as follows: Area of circle = 3.14 x Radius x Radius or 22/7 x Radius x Radius
What is the radius of a circle that has an area of 64ft squared?
The radius of a circle that has an area of 64ft squared is: 4.514 feet.
What is the relationship between the length of the diameter of a circle and length of the radius of that circle?
The diameter of any circle is twice its radius
What is the relationship between the chord and the radius of circle?
The relationship between the chord and the radius of the circle is Length of the chord = 2r sin(c/2) where r = radius of the circle and c = angle subtended at the center by the chord
What is the radius of a circle with a area of 35 mm squared?
The radius of a circle with an area of 35 mm squared is 3.34mm
What is the relationship between the diameter of a circle and its radius and vice versa?
The diameter of a circle if twice the length of the radius.
What is the relationship between the length of a radius of a circle and the length of a diameter of the same circle?
The radius is half the diameter.
What is the area of circle with a radius of 35?
Area of a circle = pi*radius squared
